【Daily Topic】【HVAC Version 20160728】
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Participation reward: 2 Wealth. Reward for the correct answer: 9 Wealth. There is a coffee shop equipped with air conditioning, which was later converted into a karaoke lounge. If the number of customers inside remains the same before and after this change in use, then the minimum amount of fresh air required in the karaoke lounge should be ( ). A. Increase to twice the original amount B. Increase to three times the original amount C. Increase to four times the original amount D. Remain unchanged
Choose C. Singing definitely results in more air circulation than drinking coffee; twice as much, so there’s no need to ask further. So, choose C. Please provide a correct explanation, I’m learning*